A poster with pictures of missing Tennessee nursing student Holly Bobo hangs on a fence in front of her house in Parsons, Tenn., on April 19. / Adrian Sainz, AP

by Brian Wilson, The Tennessean

by Brian Wilson, The Tennessean

NASHVILLE, Tenn. -- A Tennessee prosecutor said his office will consider whether to pursue the death penalty against a man indicted on charges of especially aggravated kidnapping and first-degree felony murder in the case of 20-year-old nursing student Holly Bobo.

Investigators say Bobo was abducted on the morning of April 13, 2011 near her home in Darden, Tenn.

She was last seen being led into the woods by a man dressed in camouflage.

A grand jury indicted 29-year-old Zachary Rye Adams on Wednesday. He remains in jail on a $1 million bond on an unrelated charge.

Agents with the Tennessee Bureau of Investigation would not say whether Bobo's body has been found. Prosecutors said they believe Bobo was killed in the course of the kidnapping.

District Attorney Hansel McAdams said his office will review the case to determine whether to ask for the ultimate punishment.

An audible gasp was heard as TBI Director Mark Gwyn announced the murder charge against Adams. For three years, Bobo's family and friends have remained hopeful that she would be found alive.

Gwyn stressed that the investigation continues to be active and did not say whether additional arrests could be forthcoming.

"It's taken us three years to get to this point," Gwyn said. "We can't mess it up now."

Adams will be arraigned Tuesday in a Decatur County courtroom.

Three years ago, Bobo's disappearance quickly gained national attention as state and federal officials scoured the Decatur County woods for any sign of her. A reward for information in her case soared to $460,000.

Attention was again brought to the case Friday when state and federal investigators returned to Decatur and surrounding counties to conduct searches and interviews related to the case.